Tire failure prediction system and tire failure prediction method

A tire failure prediction method, comprising the steps of:

• acquiring temperature values of a first tire and a second tire mounted at symmetrical positions on an identical axle of a traveling vehicle, the temperature values being respectively detected by first and second temperature sensors,
• determining that the first tire has a possibility of failure in a case where the temperature value of the first tire is greater than a predetermined threshold value, and a temperature difference corresponding to a difference between the temperature value of the first tire and the temperature value of the second tire is greater than a predetermined first temperature threshold value,
• detecting air pressure values of inner portions of the first tire and the second tire, the first tire and the second tire being pneumatic tires, and
• acquiring the air pressure values respectively detected by the first and second air pressure sensors, wherein
• the determining uses a second temperature threshold value that is higher than the first temperature threshold value in a case where an air pressure difference corresponding to a difference between the air pressure value of the first tire and the air pressure value of the second tire is greater than a predetermined threshold value.

A tire failure prediction method, comprising the steps of:

• acquiring temperature values of a first tire and a second tire mounted at symmetrical positions on an identical axle of a traveling vehicle, the temperature values being respectively detected by first and second temperature sensors, and
• determining that the first tire has a possibility of failure in a case where the temperature value of the first tire is greater than a predetermined threshold value, and a temperature difference corresponding to a difference between the temperature value of the first tire and the temperature value of the second tire is greater than a predetermined first temperature threshold value;
• wherein
• the temperature values are acquired at a predetermined period length,
• the temperature value of the first tire is acquired at a period length smaller than the predetermined period length in a case where the temperature value of the first tire acquired is greater than a predetermined threshold value, and a difference between the temperature of the first tire and the temperature of the second tire is greater than a predetermined threshold value.

A tire failure prediction system, comprising;

• first and second temperature sensors configured to detect a temperature value of each of a first tire and a second tire that are mounted on a traveling vehicle;
• a temperature acquisition unit configured to acquire the temperature values respectively detected by the first and second temperature sensors;
• and
• a determination unit configured to make a determination, based on the temperature values acquired by the temperature acquisition unit, of a possibility of failure of the first and second tires,
• the vehicle comprising axles on which the tires are mounted,
• the first tire and the second tire being mounted on an identical axle of the vehicle,
• a mounting position of the first tire and a mounting position of the second tire being symmetrical positions on the identical axle, and
• the determination unit making a determination that the first tire has a possibility of failure in a case where the temperature value of the first tire acquired by the temperature acquisition unit is greater than a predetermined threshold value, and a temperature difference corresponding to a difference between the temperature value of the first tire and the temperature value of the second tire acquired by the temperature acquisition unit is greater than a predetermined first temperature threshold value;
• wherein
• the temperature acquisition unit acquires the temperature value at a predetermined period length, and
• the temperature acquisition unit acquires the temperature value of the first tire at a period length smaller than the predetermined period length in a case where the temperature value of the first tire acquired by the temperature acquisition unit is greater than a predetermined threshold value, and a difference between the temperature of the first tire and the temperature of the second tire is greater than a predetermined threshold value.